diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 4923d09c9e..b79702e2bf 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -788,6 +788,7 @@ int32_t tSerializeSMDropSmaReq(void *buf, int32_t bufLen, SMDropSmaReq *pReq) {
 
   if (tStartEncode(&encoder) < 0) return -1;
   if (tEncodeCStr(&encoder, pReq->name) < 0) return -1;
+
   if (tEncodeI8(&encoder, pReq->igNotExists) < 0) return -1;
   tEndEncode(&encoder);
 
@@ -838,6 +839,10 @@ int32_t tSerializeSMDropFullTextReq(void *buf, int32_t bufLen, SMDropFullTextReq
 
   if (tStartEncode(&encoder) < 0) return -1;
 
+  if (tEncodeCStr(&encoder, pReq->name) < 0) return -1;
+
+  if (tEncodeI8(&encoder, pReq->igNotExists) < 0) return -1;
+
   tEndEncode(&encoder);
   int32_t tlen = encoder.pos;
   tCoderClear(&encoder);
@@ -847,6 +852,8 @@ int32_t tDeserializeSMDropFullTextReq(void *buf, int32_t bufLen, SMDropFullTextR
   SCoder decoder = {0};
   tCoderInit(&decoder, TD_LITTLE_ENDIAN, buf, bufLen, TD_DECODER);
   if (tStartDecode(&decoder) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pReq->name) < 0) return -1;
+  if (tDecodeI8(&decoder, &pReq->igNotExists) < 0) return -1;
 
   tEndDecode(&decoder);
   tCoderClear(&decoder);